Enhanced aerodynamics

woven fabric at front

shoulder and elbow protectors are highly perforated for maximum breathability and ventilation

and by the practical fit

Compression straps for maximum stability

Highway 21 .357 Naked Beanie Helmet - Gloss Black Helmets Enhanced aerodynamicsIf it aint broke, then dont fix it. The . 357 by HIGHWAY 21 embodies simple style and function of the classic half helmet by focusing on strong durable materials mixed with a little HIGHWAY 21 flavor. A timeless design to serve day in and day out that will not spoil your seat time. Buy it, throw it on, log miles. D. O. T. Approved Durable lightweight ABS shell EPS (Expanded polystyrene) interior Diamond stitched Coolmax liner Washable and replaceable